Craig Mayer, Nick WIlliams, Vojtech Huser
Lister Hill National Center for Biomedical Communications, National Library of Medicine, NIH, Bethesda, MD

See the full regCTG repository at https://github.com/lhncbc/CRI/tree/master/regCTG

To return to the list of conditions and view other reports go to https://lhncbc.github.io/CRI/regCTG/regCTG-condition_report_links.html


Study Counts

Type Study_count
Total_Studies 1646
interventional 1478
Observational 161
Registry 7

Studies over Time

```

Interventional Trials

Intervention Type

intervention_type Study_Count
Drug 857
Drug|Other 119
Biological 89
Biological|Drug 53
Drug|Procedure 44
Biological|Drug|Other 32
Drug|placebo 29
Other 29
Drug|Procedure|Radiation 24
Biological|Drug|Procedure|Radiation 20
Drug|Other|Procedure|Radiation 19
Biological|Drug|Other|Procedure|Radiation 17
Procedure 17
Biological|Drug|Procedure 15
Drug|Other|Procedure 13
Biological|Other 11
Behavioral 8
Biological|Drug|Other|Procedure 7
Device|Drug|Procedure 7
Drug|Genetic|Other 6
Biological|Drug|Radiation 5
Combination Product 5
Drug|Radiation 4
Other|Procedure 4
Biological|Device|Drug 3
Device 3
Genetic 3
Behavioral|Other 2
Biological|Drug|placebo 2
Biological|Other|placebo 2
Biological|Other|Procedure 2
Device|Drug 2
Drug|Genetic|Other|Procedure 2
Drug|placebo|Procedure 2
Behavioral|Drug 1
Behavioral|Other|Procedure 1
Biological|Combination Product 1
Biological|Combination Product|Drug 1
Biological|Device 1
Biological|Device|Drug|Procedure|Radiation 1
Biological|Device|Drug|Radiation 1
Biological|Drug|Genetic|Other|Procedure 1
Biological|Genetic 1
Biological|Genetic|Other|Procedure 1
Biological|placebo 1
Biological|Procedure 1
Device|Drug|Other|Procedure|Radiation 1
Device|Drug|Procedure|Radiation 1
Dietary Supplement|Drug 1
Drug|Genetic 1
Drug|Genetic|Other|Procedure|Radiation 1
Drug|Genetic|Procedure|Radiation 1
Drug|Other|placebo|Procedure 1
Drug|Other|Radiation 1
Procedure|Radiation 1

Count of Studies by Intervention (normalized and mapped)

Interventions over Time

Weekly studies for each intervention

Studies by Country

Country Study_Count
United States 825
China 62
France 54
Germany 44
NA 35
United States|Canada 33
Japan 27
Italy 24
Spain 22
United Kingdom 18
Canada 17
Korea, Republic of 12
Austria|Germany 9
United States|Australia|Canada 9
Israel 7
United States|France 6
Australia 5
Belgium 5
Brazil 5
United States|Germany 5
United States|Germany|Italy 5
Netherlands 4
Norway 4
Poland 4
Russian Federation 4
United States|Israel 4
United States|Italy 4
Denmark 3
Hong Kong 3
Iran, Islamic Republic of 3
Singapore 3
United States|Korea, Republic of 3
Finland|Norway|Sweden 2
France|Germany 2
Germany|Netherlands 2
Germany|Switzerland 2
Japan|Korea, Republic of|Taiwan 2
Sweden 2
Switzerland 2
United States|Australia 2
United States|Australia|Canada|Netherlands|New Zealand|Puerto Rico|Switzerland 2
United States|Canada|France|Germany|Hungary|India|Italy|Poland|Singapore|United Kingdom 2
United States|Canada|France|Germany|Italy|Spain 2
United States|Germany|Spain 2
United States|Spain 2
Algeria|Argentina|Australia|Brazil|Canada|Egypt|India|Israel|Lebanon|Malaysia|Mexico|Oman|Russian Federation|Saudi Arabia|South Africa|Taiwan|Thailand|Tunisia|United Arab Emirates 1
Argentina|Australia|Brazil|Canada|France|Spain 1
Argentina|Brazil|China|Colombia|Germany|Guatemala|India|Mexico|Panama|Poland|Russian Federation|Venezuela 1
Argentina|Canada|Denmark|Finland|France|Italy|Netherlands|Norway|Sweden 1
Australia|Belgium|France|Germany|Italy|Korea, Republic of|Netherlands|Singapore|Spain|Sweden|United Kingdom 1
Australia|Brazil|France|Israel|Italy|Russian Federation|Spain|Switzerland|Turkey 1
Australia|Canada|Estonia|Finland|Germany|Greece|New Zealand|Norway|Sweden 1
Australia|France 1
Australia|France|Spain|United Kingdom 1
Austria 1
Austria|Belgium|Bulgaria|Croatia|Czechia|Denmark|Finland|France|Germany|Greece|Hungary|Italy|Norway|Poland|Portugal|Romania|Serbia|Slovakia|Slovenia|Spain|Sweden|United Kingdom 1
Austria|Belgium|Canada|France|Germany|Italy|Norway 1
Austria|Belgium|Croatia|France|Germany|Italy|Netherlands 1
Austria|Belgium|Croatia|France|Italy|Netherlands 1
Austria|Canada|Finland|Norway|Russian Federation|Sweden 1
Belgium|Denmark|France|Germany|Italy|Netherlands|Spain|Sweden|United Kingdom 1
Belgium|France|Germany|Italy|Spain 1
Belgium|Germany 1
Belgium|Germany|United Kingdom 1
Belgium|Switzerland 1
Bulgaria|Canada|India|Russian Federation|Slovakia|South Africa|Spain 1
Bulgaria|Croatia|Czechia|Estonia|Finland|France|Greece|Hungary|Italy|Lithuania|Norway|Romania|Serbia|Slovakia|Spain|Sweden 1
Canada|France 1
Canada|France|Germany|Italy|Spain 1
China|Malaysia|Russian Federation|Singapore|Thailand 1
Colombia|Venezuela 1
Czechia|Denmark|Finland|France|Germany|Greece|Netherlands|Norway|Portugal|Sweden 1
Czechia|Germany|Switzerland 1
Denmark|Finland|Norway|Sweden 1
Denmark|Germany|Netherlands 1
Denmark|United Kingdom 1
Egypt 1
Finland 1
Finland|Germany|Netherlands|Norway|Sweden 1
France|Germany|Italy 1
France|Germany|United Kingdom 1
France|Switzerland 1
France|United States|Argentina|Australia|Austria|Belgium|Brazil|Bulgaria|Czechia|Germany|Israel|Italy|Japan|Norway|Poland|Portugal|Spain|Switzerland|Taiwan|Turkey 1
France|United States|Argentina|Austria|Belgium|Brazil|Canada|Colombia|Czechia|Denmark|Egypt|Finland|Germany|Hong Kong|Hungary|Italy|Japan|Korea, Republic of|Malaysia|Mexico|Netherlands|Norway|Poland|Portugal|Russian Federation|Singapore|Slovakia|South Africa|Spain|Sweden|Switzerland|Taiwan|Thailand|Turkey|United Kingdom|Venezuela 1
France|United States|Australia|Austria|Belgium|Canada|Denmark|Finland|Germany|Hong Kong|Italy|Korea, Republic of|Netherlands|New Zealand|Norway|Poland|Singapore|Spain|Sweden|Switzerland|Taiwan|United Kingdom 1
France|United States|Australia|Italy|Spain 1
France|United States|Belgium|Canada|Germany|Greece|Netherlands|Poland|Serbia|United Kingdom 1
Hong Kong|Japan|Korea, Republic of|Russian Federation|Taiwan|Thailand|Vietnam 1
India 1
India|Korea, Republic of|Thailand 1
Indonesia|Korea, Republic of|Philippines|Thailand 1
Ireland|Italy|United Kingdom 1
Ireland|United States|Germany|Israel 1
Israel|Italy 1
Israel|United States 1
Japan|Korea, Republic of 1
Jordan|Lebanon|Saudi Arabia|Tunisia 1
Korea, Republic of|Turkey|Ukraine 1
Lebanon 1
Malaysia 1
Mexico 1
Mexico|United States|Argentina|Belgium|Brazil|Canada|Czechia|Germany|Greece|Hong Kong|Hungary|Ireland|Israel|Italy|Korea, Republic of|Netherlands|Poland|Puerto Rico|Russian Federation|Spain|Taiwan|Thailand 1
Portugal|Spain 1
Spain|Sweden|United States|Argentina|Australia|Austria|Belgium|Brazil|Canada|Czech Republic|Denmark|Finland|France|Germany|Greece|Hungary|Ireland|Israel|Italy|Korea, Republic of|Netherlands|Norway|Peru|Philippines|Poland|Russian Federation|Singapore|South Africa|Switzerland|Taiwan|Thailand|United Kingdom 1
Spain|United States|Australia|Canada|Croatia|Czechia|France|Hungary|Mexico|Poland|Romania|Russian Federation|Serbia|Taiwan|United Kingdom 1
Thailand 1
Turkey 1
United States|Argentina|Australia|Austria|Belgium|Brazil|Canada|China|Denmark|Estonia|Finland|France|Germany|Hungary|Ireland|Israel|Italy|Korea, Republic of|Norway|Peru|Philippines|Poland|Puerto Rico|Russian Federation|Singapore|South Africa|Spain|Sweden|Switzerland|Taiwan|Thailand|United Kingdom 1
United States|Argentina|Australia|Austria|Belgium|Brazil|Canada|Czech Republic|Denmark|Finland|France|Germany|Hungary|Ireland|Israel|Italy|Korea, Republic of|Mexico|Netherlands|Norway|Peru|Philippines|Poland|Russian Federation|Singapore|South Africa|Spain|Sweden|Switzerland|Taiwan|United Kingdom 1
United States|Argentina|Australia|Austria|Belgium|Brazil|Canada|Denmark|Finland|France|Germany|Israel|Italy|Korea, Republic of|Netherlands|Norway|Peru|Sweden|Switzerland|United Kingdom 1
United States|Argentina|Australia|Austria|Belgium|Brazil|Chile|China|Colombia|Czech Republic|Denmark|France|Germany|Greece|Hungary|India|Italy|Japan|Korea, Republic of|Mexico|Netherlands|Peru|Poland|Russian Federation|Singapore|Spain|Turkey 1
United States|Argentina|Australia|Austria|Brazil|Czechia|France|Germany|Hungary|Italy|Korea, Republic of|Poland|Romania|Spain|Taiwan|United Kingdom 1
United States|Argentina|Australia|Belgium|Brazil|Bulgaria|Canada|China|Croatia|Czechia|France|Germany|Hong Kong|Hungary|Israel|Italy|Taiwan|Japan|Korea, Republic of|Poland|Portugal|Romania|Russian Federation|Serbia|Singapore|Spain|Ukraine|United Kingdom 1
United States|Argentina|Australia|Belgium|Brazil|Canada|Chile|China|Colombia|Finland|France|Hong Kong|Hungary|India|Italy|Japan|Korea, Republic of|Latvia|Netherlands|Peru|Poland|Russian Federation|Singapore|South Africa|Spain|Thailand|Turkey|Ukraine|United Kingdom 1
United States|Argentina|Australia|Belgium|Brazil|Canada|China|Czechia|France|Germany|Greece|Hungary|Ireland|Japan|Korea, Republic of|Mexico|New Zealand|Norway|Puerto Rico|Russian Federation|South Africa|Spain|Taiwan|United Kingdom 1
United States|Argentina|Australia|Belgium|Brazil|Canada|Denmark|Finland|France|Germany|Israel|Italy|Korea, Republic of|Netherlands|Norway|Peru|Philippines|Singapore|Sweden|Switzerland|Taiwan|Thailand|United Kingdom 1
United States|Argentina|Australia|Belgium|Brazil|Canada|Finland|France|Germany|Hungary|Ireland|Israel|Italy|Korea, Republic of|Norway|Peru|Poland|Russian Federation|South Africa|Spain|Sweden|Switzerland|Thailand|United Kingdom 1
United States|Argentina|Australia|Belgium|Brazil|Canada|France|Germany|Greece|Israel|Japan|Korea, Republic of|Mexico|Poland|Russian Federation|Singapore|Spain|Tunisia|United Kingdom 1
United States|Argentina|Australia|Brazil|Bulgaria|Canada|Czechia|France|Germany|Hungary|Israel|Italy|Japan|Korea, Republic of|Lebanon|Mexico|Netherlands|Romania|Russian Federation|Saudi Arabia|Serbia|Spain|Switzerland|Turkey|United Kingdom 1
United States|Argentina|Australia|Canada|Chile|Czechia|Denmark|France|Germany|Hong Kong|Italy|Korea, Republic of|Poland|Portugal|Russian Federation|Singapore|Spain|Sweden|Switzerland|Taiwan|United Kingdom 1
United States|Argentina|Austria|Belgium|Brazil|Canada|China|Czechia|France|Hungary|Italy|Korea, Republic of|Poland|Spain|Thailand 1
United States|Argentina|Austria|Belgium|Brazil|Canada|Czechia|Finland|France|Germany|Greece|Hungary|India|Italy|Japan|Korea, Republic of|Mexico|Netherlands|Norway|Poland|Portugal|Russian Federation|South Africa|Spain|Taiwan 1
United States|Argentina|Austria|Belgium|Bulgaria|Colombia|Denmark|France|Germany|Greece|Hungary|Ireland|Italy|Japan|Netherlands|Poland|Spain|Sweden|United Kingdom 1
United States|Australia|Austria|Belgium|Brazil|Canada|China|Croatia|Czechia|Denmark|Finland|France|Germany|Hungary|Israel|Italy|Japan|Korea, Republic of|Norway|Poland|Portugal|Puerto Rico|Russian Federation|South Africa|Spain|Sweden|Taiwan|Turkey|Ukraine 1
United States|Australia|Austria|Belgium|Brazil|Canada|China|Czechia|Denmark|France|Germany|Italy|Korea, Republic of|Russian Federation|Spain|Taiwan|Turkey|United Kingdom 1
United States|Australia|Austria|Belgium|Brazil|Canada|Czechia|Finland|France|Germany|Ireland|Israel|Italy|Korea, Republic of|Lithuania|Mexico|Poland|Portugal|Russian Federation|Spain|Taiwan|Turkey|United Kingdom 1
United States|Australia|Austria|Belgium|Bulgaria|Canada|Czechia|Denmark|Finland|France|Germany|Hungary|Italy|Japan|Korea, Republic of|Netherlands|Poland|Romania|Russian Federation|Serbia|Spain|Sweden|Taiwan|United Kingdom 1
United States|Australia|Austria|Belgium|Canada|China|Czechia|France|Germany|Israel|Italy|Korea, Republic of|Netherlands|Poland|Russian Federation|Spain|Taiwan|United Kingdom 1
United States|Australia|Austria|Belgium|Canada|Czechia|France|Germany|Hungary|Italy|Korea, Republic of|New Zealand|Poland|Spain|United Kingdom 1
United States|Australia|Austria|Belgium|Canada|Denmark|Finland|France|Germany|Ireland|Israel|Italy|Korea, Republic of|Netherlands|Norway|Peru|Singapore|South Africa|Spain|Sweden|Switzerland|United Kingdom 1
United States|Australia|Austria|Belgium|Canada|Denmark|Finland|France|Germany|Israel|Italy|Korea, Republic of|Netherlands|Norway|Philippines|Singapore|Sweden|Switzerland|Taiwan|United Kingdom 1
United States|Australia|Austria|Belgium|Canada|Denmark|France|Germany|Italy|Netherlands|New Zealand|Norway|Spain|Sweden|Switzerland|United Kingdom 1
United States|Australia|Austria|Belgium|France|Germany|Korea, Republic of|Poland|Spain 1
United States|Australia|Austria|Brazil|Canada|China|Czechia|France|Germany|Israel|Italy|Japan|Korea, Republic of|Mexico|Netherlands|Poland|Russian Federation|Spain|Taiwan|United Kingdom 1
United States|Australia|Austria|Canada|Chile|Czechia|Denmark|France|Germany|Hong Kong|Italy|Japan|Korea, Republic of|Poland|Portugal|Russian Federation|Spain|Taiwan|United Kingdom 1
United States|Australia|Belgium|Brazil|Canada|China|Czechia|France|Germany|Greece|Israel|Italy|Japan|Korea, Republic of|Mexico|Poland|Russian Federation|Spain|Turkey|United Kingdom 1
United States|Australia|Belgium|Canada|Croatia|Czechia|France|Germany|Hong Kong|Hungary|Italy|Korea, Republic of|Netherlands|Poland|Serbia|Singapore|Spain|Taiwan|United Kingdom 1
United States|Australia|Belgium|Canada|Denmark|France|Germany|Greece|Italy|Japan|Korea, Republic of|New Zealand|Poland|Spain|Taiwan|United Kingdom 1
United States|Australia|Belgium|Canada|France|Germany|Ireland|Italy|Norway|Poland|Romania|Spain|United Kingdom 1
United States|Australia|Belgium|Canada|France|Germany|Italy|Japan|Korea, Republic of|Poland|Spain|Taiwan|United Kingdom 1
United States|Australia|Belgium|France|Germany|Israel|Korea, Republic of|Poland|Russian Federation|Spain|Sweden|Taiwan|Turkey|United Kingdom 1
United States|Australia|Belgium|France|Germany|Italy|Korea, Republic of|Peru|Spain|Switzerland|Turkey|United Kingdom 1
United States|Australia|Brazil|Canada|China|Czechia|France|Germany|Greece|Hungary|Italy|Japan|Korea, Republic of|Puerto Rico|Russian Federation|Spain|Taiwan|Turkey|United Kingdom 1
United States|Australia|Brazil|Canada|China|Czechia|France|Germany|Israel|Italy|Japan|Korea, Republic of|Russian Federation|Spain|Switzerland|Taiwan|United Kingdom 1
United States|Australia|Canada|Denmark|Estonia|Finland|France|Germany|Israel|New Zealand|Sweden|United Kingdom 1
United States|Australia|Canada|France|Germany|Italy|Korea, Republic of|Netherlands|Portugal|Spain|Switzerland|United Kingdom 1
United States|Australia|Canada|France|Germany|Italy|Korea, Republic of|Spain|United Kingdom 1
United States|Australia|Canada|France|Germany|Italy|Spain 1
United States|Australia|Canada|France|Italy|Korea, Republic of|United Kingdom 1
United States|Australia|Canada|Germany|Israel|Italy|New Zealand|Poland|Romania|Russian Federation|Spain|Sweden|Ukraine 1
United States|Australia|Canada|Germany|Japan 1
United States|Australia|Canada|Ireland|Italy|Netherlands|Spain 1
United States|Australia|Canada|New Zealand|Puerto Rico 1
United States|Australia|Canada|New Zealand|Puerto Rico|Saudi Arabia 1
United States|Australia|Canada|New Zealand|Puerto Rico|Switzerland 1
United States|Australia|Canada|Puerto Rico|Switzerland 1
United States|Australia|Finland|France|Germany|Netherlands|Spain|United Kingdom 1
United States|Australia|Finland|Italy|Singapore|Spain|Switzerland 1
United States|Australia|France 1
United States|Australia|France|Germany 1
United States|Australia|France|Germany|Italy|Japan|Korea, Republic of|Netherlands|Singapore|Spain 1
United States|Australia|France|Germany|Italy|Japan|Romania|Spain|United Kingdom 1
United States|Australia|France|Spain 1
United States|Australia|Germany 1
United States|Australia|Germany|Italy 1
United States|Australia|Ireland 1
United States|Australia|Singapore 1
United States|Australia|Spain 1
United States|Austria|Belgium|Canada|France|Germany|Hungary|Italy|Korea, Republic of|Spain|Sweden|Switzerland|Thailand|United Kingdom 1
United States|Austria|Belgium|Canada|France|Germany|Italy|Netherlands|Poland|Portugal|Spain|United Kingdom 1
United States|Austria|Belgium|France|Germany|Hungary|Italy|Poland|Spain|Sweden|Switzerland|United Kingdom 1
United States|Austria|France|Germany|Italy|Norway|Spain|Sweden 1
United States|Belgium 1
United States|Belgium|Bulgaria|Canada|Czechia|France|Germany|Ireland|Israel|Italy|Netherlands|Spain 1
United States|Belgium|Canada|Denmark|France|Germany|Hungary|Italy|Japan|Korea, Republic of|Poland|Spain|Sweden|Ukraine|United Kingdom 1
United States|Belgium|Canada|France|Germany|Israel|Italy|Japan|Korea, Republic of|Poland|Spain|Taiwan|Turkey|United Kingdom 1
United States|Belgium|Canada|France|Germany|United Kingdom 1
United States|Belgium|Czechia|France|Hungary|India|Italy|Korea, Republic of|Romania|Spain|United Kingdom 1
United States|Belgium|Denmark|France|Israel|Italy|Netherlands|Spain|Sweden 1
United States|Belgium|France|Italy|Netherlands 1
United States|Brazil|Canada|Czechia|Denmark|France|Germany|Greece|Hungary|Israel|Italy|Japan|Korea, Republic of|Poland|Portugal|Romania|Serbia|Spain|Sweden|Taiwan|United Kingdom 1
United States|Brazil|Denmark|France|Germany|Hong Kong|Italy|Korea, Republic of|Puerto Rico|Taiwan|United Kingdom 1
United States|Brazil|France|Israel|Italy|Netherlands|Portugal|Singapore|Spain|United Kingdom 1
United States|Brazil|France|Italy|Korea, Republic of|Netherlands|Russian Federation|United Kingdom 1
United States|Canada|Denmark|France|Germany|Israel|Italy|Netherlands|Poland|Spain|United Kingdom 1
United States|Canada|France 1
United States|Canada|France|Germany|Italy 1
United States|Canada|France|Germany|Italy|Netherlands|Poland|Spain|United Kingdom 1
United States|Canada|France|Italy 1
United States|Canada|France|Italy|Norway|Spain|United Kingdom 1
United States|Canada|France|Italy|United Kingdom 1
United States|Canada|France|Poland 1
United States|Canada|France|Spain 1
United States|Canada|Germany|Italy|Poland|Spain 1
United States|Canada|Germany|Poland|Switzerland 1
United States|Canada|Netherlands 1
United States|Canada|New Zealand 1
United States|Canada|Puerto Rico 1
United States|Denmark 1
United States|Denmark|Germany 1
United States|France|Australia|Austria|Belgium|Canada|China|Czechia|Germany|Hungary|Israel|Italy|Japan|Korea, Republic of|Mexico|Poland|Romania|Russian Federation|Spain|Sweden|Taiwan|United Kingdom 1
United States|France|Germany 1
United States|France|Germany|Italy|Korea, Republic of 1
United States|France|Germany|Italy|Switzerland|United Kingdom 1
United States|France|Germany|Italy|United Kingdom 1
United States|France|Germany|Norway 1
United States|France|Germany|Spain 1
United States|France|Hungary|Italy|Japan|Korea, Republic of|Malaysia|Netherlands|Russian Federation|Spain|Thailand|Turkey|United Kingdom 1
United States|France|Israel|Japan|United Kingdom 1
United States|France|Italy|Netherlands 1
United States|France|Italy|Spain 1
United States|France|Italy|United Kingdom 1
United States|France|United Kingdom 1
United States|Georgia 1
United States|Germany|Israel 1
United States|Germany|Italy|Spain 1
United States|Germany|Netherlands 1
United States|Germany|United Kingdom 1
United States|Hungary|Israel|Italy|Spain 1
United States|India|Israel 1
United States|Israel|Peru 1
United States|New Zealand 1
United States|Puerto Rico 1
United States|Puerto Rico|South Africa 1
United States|Singapore 1
United States|Singapore|Australia|Belgium|Canada|Czechia|Denmark|Finland|France|Germany|Hungary|Israel|Italy|Korea, Republic of|Mexico|Netherlands|Norway|Poland|Slovakia|South Africa|Spain|Sweden|Taiwan|Thailand|Ukraine|United Kingdom 1
United States|Spain|United Kingdom 1
United States|Switzerland 1
United States|United Kingdom 1

Sites per Study

Site_count Study_Count
1 761
2 96
3 66
4 37
5 49
6 34
7 26
8 27
9 28
10 22
11 18
12 15
13 15
14 8
15 11
16 6
17 11
18 9
19 10
20 8
21 15
22 9
23 6
24 5
25 6
26 7
27 7
28 3
29 3
30 4
31 1
32 4
33 2
34 4
35 2
36 2
38 5
40 3
42 2
43 2
44 2
45 4
46 2
47 1
49 1
50 4
51 2
52 2
53 4
54 3
55 1
56 1
57 1
59 1
60 2
61 2
62 4
65 4
66 3
69 1
70 1
71 1
72 1
73 3
76 1
78 2
81 3
82 1
84 1
85 3
86 1
87 1
88 1
90 1
92 1
95 1
96 1
97 2
98 1
99 3
100 1
101 1
108 1
109 2
112 2
118 2
119 1
120 1
122 1
124 1
127 1
128 1
130 1
131 2
132 1
135 1
137 1
139 1
144 1
148 1
149 1
151 1
153 1
163 1
169 1
171 1
172 1
176 1
177 1
178 1
179 1
185 1
192 1
198 1
201 1
216 1
220 2
225 1
233 1
234 1
235 1
241 1
242 1
244 1
269 1
341 2
447 1
454 1

Phase

Phase Study_Count
Phase 2 551
Phase 1 392
Phase 1/Phase 2 226
Phase 3 158
N/A 81
Phase 4 32
Phase 2/Phase 3 28
Early Phase 1 10

Number of Arms

Number_of_Arms Count_of_Studies
1 785
2 359
3 81
4 44
5 13
6 17
7 7
9 4
10 1
11 1
12 1
13 1
16 1
NA 163

Number of Updates

Count of Versions Count of Studies
1 52
2 70
3 79
4 99
5 74
6 55
7 66
8 63
9 74
10 55
11 57
12 58
13 61
14 48
15 47
16 30
17 31
18 37
19 24
20 25
21 22
22 21
23 13
24 24
25 16
26 22
27 14
28 10
29 13
30 11
31 10
32 10
33 9
34 6
35 5
36 5
37 10
38 7
39 3
40 10
41 5
42 4
43 1
44 7
45 6
46 5
47 2
48 2
49 2
50 2
51 5
52 4
53 2
54 1
55 1
57 1
59 3
60 2
61 2
62 4
63 1
65 3
66 1
67 3
68 1
70 2
71 3
72 3
73 1
75 1
76 1
77 2
78 2
81 2
82 2
83 1
84 2
85 2
86 2
88 1
92 1
93 1
94 2
96 1
97 1
98 1
101 1
103 1
106 1
108 1
109 1
112 1
116 1
118 1
124 2
127 2
129 2
133 1
139 1
157 1
162 1
170 1
223 1
232 1
284 1
320 1
347 1
349 1
439 1
444 1
556 1

Update History Change Type

Change Type Count_of_Changes Count_of_Studies ratio
Study Status 27008 1426 18.939691
Contacts/Locations 12405 1330 9.327068
Recruitment Status 2863 1281 2.234973
Arms 2847 957 2.974922
Interventions 2847 957 2.974922
Eligibility 2795 984 2.840447
Study Design 2607 1065 2.447887
Study Description 2408 846 2.846336
Study Identification 2386 918 2.599128
Outcome Measures 2202 905 2.433149
Conditions 1656 620 2.670968
Sponsor/Collaborators 1581 817 1.935129
None (earliest Version on record) 1478 1478 1.000000
Oversight 1295 834 1.552758
More Information 763 190 4.015790
References 652 330 1.975758
Results 266 266 1.000000
IPDSharing 213 163 1.306749
Baseline Characteristics 127 91 1.395604
Results Submission Events 87 87 1.000000
Reported Adverse Events 80 65 1.230769
Participant Flow 69 58 1.189655
Documents 63 62 1.016129

Enrollment Metrics by Phase

Measure Early.Phase.1 N.A Phase.1 Phase.1.Phase.2 Phase.2 Phase.2.Phase.3 Phase.3 Phase.4
Min. 6.00 2.0000 2.00000 2.00000 2.00000 9.00 6.0000 18.00
1st Qu. 12.50 26.0000 18.00000 31.00000 32.00000 49.50 200.7500 61.75
Median 20.00 50.0000 30.00000 45.00000 55.00000 119.00 360.0000 107.00
Mean 24.60 114.7531 39.77225 77.01345 87.06604 322.75 434.7922 146.50
3rd Qu. 30.75 120.0000 50.00000 79.00000 105.75000 265.25 538.2500 165.25
Max. 55.00 2000.0000 330.00000 2000.00000 862.00000 2000.00 3500.0000 600.00

Trial Group Type

group_type Group_Count
Experimental 1890
Active Comparator 213
NA 163
Other 67
Placebo Comparator 34
No Intervention 30
Sham Comparator 2

Intervention Model

intervention_model Study_Count
Single Group Assignment 917
Parallel Assignment 413
NA 76
Sequential Assignment 52
Crossover Assignment 13
Factorial Assignment 7

Primary Purpose

primary_purpose Study_Count
Treatment 1360
Supportive Care 44
Prevention 26
Other 15
NA 11
Diagnostic 8
Health Services Research 7
Basic Science 6
Screening 1

Observational Studies

Studies by Country

Country Study_Count
United States 56
France 19
NA 19
Italy 11
Spain 6
China 5
Egypt 4
Germany 3
United Kingdom 3
Belgium 2
Brazil 2
Canada 2
Israel 2
Japan 2
United States|Canada 2
Australia 1
Austria 1
Austria|Croatia 1
Austria|Germany 1
Austria|United States|Brazil|China|Germany|Iraq|Italy|Malaysia|Netherlands 1
Belgium|Croatia|France|Italy|North Macedonia|Slovakia|Slovenia|Turkey 1
Canada|Korea, Republic of 1
Denmark 1
Denmark|Finland|Germany|Hungary|Israel|Poland|Russian Federation|Saudi Arabia|United Kingdom 1
France|Germany|Italy|Spain 1
Hong Kong 1
Ireland|United Kingdom 1
Jordan 1
Korea, Republic of 1
Mexico 1
Russian Federation 1
Taiwan 1
Turkey 1
United States|Australia|Canada|New Zealand|Puerto Rico|Switzerland 1
United States|Austria|Belgium|France|Germany|Greece|Iraq|Italy|Netherlands|Taiwan 1
United States|France|Germany|Italy|Netherlands|Puerto Rico|Russian Federation|Spain 1
United States|Netherlands 1
United States|Puerto Rico 1

Sites per Study

Site_count Study_Count
1 103
2 8
3 5
6 1
7 4
8 1
10 2
12 1
14 2
15 2
16 1
17 2
19 3
20 1
25 1
26 1
32 2
33 2
37 2
38 1
39 1
40 1
42 1
46 2
49 1
52 1
56 1
66 2
70 1
77 1
144 1
192 1
214 1
225 1

Number of Updates

Count of Versions Count of Studies
1 17
2 23
3 21
4 21
5 15
6 8
7 11
8 2
9 5
10 2
11 4
12 3
13 5
14 2
15 1
16 3
17 1
20 1
21 1
23 1
24 1
28 2
33 1
38 1
44 1
62 1
63 2
112 1
118 1
122 1
165 1
224 1

Update History Change Type

Change Type Count_of_Changes Count_of_Studies ratio
Study Status 1765 144 12.256944
Contacts/Locations 989 107 9.242991
Recruitment Status 191 119 1.605042
Study Design 175 99 1.767677
Study Description 169 63 2.682540
None (earliest Version on record) 161 161 1.000000
Eligibility 143 75 1.906667
Outcome Measures 94 63 1.492063
Study Identification 93 65 1.430769
Sponsor/Collaborators 91 71 1.281690
Groups 73 44 1.659091
Interventions 73 44 1.659091
Oversight 72 66 1.090909
Conditions 45 32 1.406250
References 30 24 1.250000
IPDSharing 14 14 1.000000
Results 6 6 1.000000
Results Submission Events 6 6 1.000000
Documents 4 4 1.000000
More Information 3 1 3.000000

Enrollment Metrics

Measure Observational
Min 1.000
1st Qu 59.000
Median 144.500
Mean 1122.819
3rd Qu 326.500
Max 99999.000

Observation Model

observational_model Study_Count
Cohort 81
Case-Only 47
Other 12
Case-Control 10
NA 6
Case Control 4
Ecologic or Community 1

Time Perspective

time_perspective Study_Count
Prospective 92
Retrospective 47
Cross-Sectional 12
Other 5
NA 5

Registries

Studies by Country

Country Study_Count
United States 3
Brazil 1
Canada 1
Germany 1
Hong Kong 1

Sites per Study

Site_count Study_Count
1 5
6 1
7 1

Number of Updates

Count of Versions Count of Studies
1 1
2 1
3 1
4 2
6 1
11 1

Update History Change Type

Change Type Count_of_Changes Count_of_Studies ratio
Study Status 24 6 4.000000
Contacts/Locations 9 5 1.800000
None (earliest Version on record) 7 7 1.000000
Study Design 5 4 1.250000
Eligibility 4 3 1.333333
Outcome Measures 4 3 1.333333
Recruitment Status 3 3 1.000000
Study Identification 3 2 1.500000
IPDSharing 2 1 2.000000
Oversight 2 2 1.000000
Groups 1 1 1.000000
Interventions 1 1 1.000000
Study Description 1 1 1.000000

Enrollment Metrics

Measure Registries
Min 100.000
1st Qu 165.000
Median 547.000
Mean 1282.429
3rd Qu 1500.000
Max 5000.000

Registry Model

observational_model Study_Count
Cohort 3
Other 3
Case-Only 1

Time Perspective

time_perspective Study_Count
Prospective 4
Other 2
Cross-Sectional 1

Follow-up

target_duration Study_Count
1 Year 3
5 Years 3
10 Years 1